Line-casting machine



Sept. 21, 1965 c. F. swENsoN LINE-CASTING MACHINE 5 Sheets-Sheet l FiledSept. 50, 1963 Sept. 21, 1965 C. F. SWENSON LINE-CASTING MACHINE Filedsept. so, `196s 5 sheets-sheet 2 "nel Tls

T40 0,16 DELA y A WHEY Sept- 21, 1965 c. F. SWENSON 3,208,041

LINE-CASTING MACHINE Filed Sept. 50, 1963 3 Sheets-Sheet 3 Ag o Le vAre' 771/11 SPAnE INV EN TOR. V. CAA@ f.' 5MG/vso United States Patent3,203,041 LINE-CASTING MACHINE Carl F. Swenson, Hillsdale, NJ.,assigner, by mesne assignments, to Powers & Eaton Industries, Inc.,Hawthorne, NJ., a corporation of New Jersey Filed Sept. 30, 1963, Ser.No. 312,698 18 Claims. (Cl. 340-147) The present invention relates to animproved line-casting machine and more particularly to an improvedcontrol mechanism for automatic line-casting machines.

The present invention is an improvement over my copending United StatesPatent application Serial No. 95,- 577, tiled in the United StatesPatent Oiiice on March 14, 1961.

Automatic line-casting machines, as described in said co-pendingapplication, are controlled by perforated tape which is moved through atape reader. The tape reader senses the perforations or code openings onthe tape as it passes therethrough and energizes certain circuits whichcause the machine to perform predetermined functions.

As well-known, a line-casting machine operates by releasing a pluralityof matrices from a magazine and depositing them on an elevator. When acomplete line of matrices has been assembled on the elevator, theelevator is raised to a position where the assembled matrices are castinto a line of type.

In automatic line-casting machines which are controlled by a perforatedtape, the code openings in the tape cause the mats to be dropped fromthe magazine and assembled on the elevator and also cause the machine togo through its various functions, such as raising the elevator, loweringthe elevator, etc.

In the operation of such automatically-controlled linecasting machines,it sometimes becomes necessary to repeat a line, as, for example, when amalfunction of the line-casting machine prevents a particular line frombeing cast.

In such situations, the operator of the machine must tirst stop themachine and remove the defective line. He then removes the tape from thetape reader, searches for the code opening in the tape which energizedthe last elevate circuit, and replaces the tape in the tape reader atthe proper position. He then starts the machine again so that thedefective line can be recast. As will be obvious, such an operation isboth time consuming and expensive.

The present invention eliminates these disadvantages and provides animproved control mechanism for a linecasting machine whereby the linewill be automatically reassembled on the elevator.

Another object of the present invention is the provision of an improvedcontrol mechanism for a line-casting machine in which the perforatedtape is automatically moved back to the proper position.

lAnother object of the present invention is the provision of anautomatic control mechanism for line-casting machines which permits thetape readerto be removed from the close proximity of the line-castingmachine.

Other and further objects of the invention will be obvious upon anunderstanding of the illustrative embodiment about to be described, orwill be indicated in the appended claims, and various advantages notreferred to herein will occur to one skilled in the art upon employmentof the invention in practice.

A preferred embodiment of the invention has been chosen for purposes ofillustration and description and is shown in the accompanying drawings,forming a part of the specification, wherein:

FIG. 1 is a logic diagram showing the improved control mechanism forpermitting the tape to back-up automatically to the beginning of theline to be recast;

3,208,041 Patented Sept. 21, 1965 ice FIG. 2 is a schematic plan View ofthe perforated tape and tape reader adapted to be used in the presentinvention;

FIG. 3 is a schematic simplified diagram showing an automatic controlcircuit for line-casting machines; and

FIG. 4 is a schematic diagram showing the solenoids for releasingindividual matrices.

As more fully described in said application Serial No. 95,577, aline-casting machine comprises a keyboard having a plurality ofindividual keys. Each key has a letter or other symbol on its face andwhen depressed is adapted to release a matrix from a magazine.

In automatic line-casting machines, each key is depressed by a solenoidwhich may be located beneath the keys. When a particular solenoid isenergized by a circuit which will be described hereinafter, its armatureis moved to depress a key which in turn actuates the matrixreleasingmechanism to release a particular matrix from a storage magazine.

The automatic control circuit for solenoids 13a to 13h which actuates aparticular key is closed by the perforated code tape 6. The tape has sixcode openings designated 0, l, 2, 3, 4, 5 which will open a particularpath in the circuit depending upon the particular combination of codeholes which is read by a tape reader, which will be described in greaterdetail hereinafter. The tape 6 has a central smaller opening M to permita signal to be pulsed through the circuit to energize a particularsolenoid 13a to 13h and release a particular matrix.

As shown in FIG. 2, the openings have been designated 0, 1, and 2 on oneside of the central pulsing hold M and 3, 4, and 5 on the other side ofthe central pulsing opening M. By a combination of these code holes itwill be noted that a number of paths through the circuit can be opened,each of the paths leading to one of the solenoids 13a to 13h which iscontrolled thereby.

In addition to releasing matrices from the magazine, the tape 6 alsocontrols all of the other functions of the machine, such as elevate,upper rail, lower rail, etc. In all, through a shift and unshiftcircuit, hereinafter described, the perforated tape 6 is capable of 128combinations to operate the line-casting machine fully automatically.

The coded tape 6 is read by a photo-electric mechanism which comprises alight source and a photo-diode housing P comprising photo-diodes P0, P1,P2, P3, P4 and P5 overlying the paths of openings, 0, 1, 2, 3, 4 and 5,respectively, and a centrally located photo-diode Pm overlying the pathof the central pulsing opening M.

The photo-diodes P0 to P5 are adapted to read the tape 6 to determineWhether there is a hole present therebeneath or whether there is ano-hole (absence of a hole) therebeneath. In either case, a circuit isclosed to the particular solenoid 13a to 13h.

Referring to FIG. 3 shows eight solenoids 13a to 13h only, for clarity,the signals from the photo-diodes P0 to P5 are amplified by an amplifierT1 and by means of the flip-flop T2 and T3 a hole line is closed or thenohole line is closed. In each case, the particular hole line or no-holeline closed corresponds to the particular combination of code holes 0 to5 appearing on the tape 6 when it is read by the photo-diodes P0 to P5in the photodiode housing P. For this reason, the hole lines in FIG. 1have been designated 0, 1, 2, 3, 4 and 5 corresponding to thedesignations of the code holes 0 to 5 in tape 6, to indicate that if aparticular code hole is read the corresponding hole line is closed andthe no-hole lines in FIG. l have been designated and 5 to indicate thatif a particular code hole in the tape does not appear, the correspondingno-hole line will be energized.

Each hole line to 2 and each no-hole line to E is connected to aplurality of gates A6 to A7 connected through amplifying circuits 16 toone side of solenoids 13a to 13h and each hole line 3 to 5 and eachno-hole line to is connected to a plurality of gates B6 to B7 connectedthrough amplifying circuits 17 to the other side of the solenoids 13a to13h. Each of these gates are and gates so that all the conditions of thegate must be satisfied before the gate will open.

The hole line 0 is connected to gates A1, A3, A5 and A7 andcorresponding hole line 3 on the other side is connected to gates B1,B3, B5 and B7. The no-hole lines and are connected to gates A6, A2, A4and A6 and to gates B6, B2, B4 and B6, respectively. The no-hole linesand are connected, respectively, to gates A6, A1, A4 and A5 and B6, B1,B4 and B5 whereas the hole lines l and 4 are connected to gates A2, A3,A6 and A7 and to B2, B3, B6 and B7. Finally, no-hole lines '2' and 5 areconnected to gates A6, A1, A2 and A3 and B6, B1, B2 and B3 while hole7lines 2 and 5 are connected to gates A4, A5, A6 and A7 and B4, B5, B6and B7.

With this arrangement, a particular gate on each side of the solenoids13a to 13h will be opened each time the tape is read by the photo-diodesP6 to P5. The example, gate A6 will only operate if codes and (i.e.,holes 0, 1, 2 do not appear on the tape) are read by the photodiode andB6 will be opened when codes and 5 are read by the photo-diodes. On theother hand, gates A7 and B7 will only be operated if the codes 0, l, 2,3, 4 and 5 (i.e., all the holes) appears on the tape.

Since the solenoids 13 are between the two sets of gates A6-A7 andB6-B7, a path through a single solenoid only is opened depending onwhich gates have been opened responsive to the code combination on thetape.

This is shown in the simplified version of the solenoid bank shown inFIG. 3. Each gate A6-A7 is shown as being connected to the solenoids 13ato 13h, respectively. The gate B6 is shown connected to all thesolenoids 13a to 13h. For clarity, gates B1 to B7 have been shown asbeing unconnected to any solenoids.

With this arrangement if the photo-diodes read the code 0, l, 2, 5, thegates A7 and B6 are opened and the path through solenoid 13a is opened.Similarly, if the code is l, 2, 5, then gates A6 and B6 would be openedto close the circuit to solenoid 13g. The paths through the othersolenoids 13a to 13f are opened in a similar manner.

, It will thus be seen that depending upon the code combination in thetape which is read by the tape reader, a predetermined path will beopened through a particular solenoid and that when the central hole M onthe tape is then read by the photo-diode Pm, the signal will be pulsedthrough the predetermined path in the circuit to energize that solenoidonly which will release a matrix or perform another function of themachine.

Inherent within the basic design of a type-casting machine, it takeslonger for two successive matrices to be selected from the same channelor a magazine than it does for two successive matrices from differentchannels of the same magazine. When operating at higher speeds it isnecessary to slow the reader down when dual characters are sensedso thatthe second character of the dual would not be left in the magazine.

In order to avoid this, the present invention introduces a delay in themachine which will stop the tape reader for a predetermined amount oftime so that after the first character is released, the machine cancatch up before the second character will be released.

As shown in FIG. 3, the gate D1-D2 has a positive set signal from thepulsing circuit, described more fully hereinafter, and receives a signalfrom the transistor T2 each time a code is read by the photo-diodes. Ifa hole appears under the same photo-diode in successive codecombinations in the tape, the points Q6 to Q5 are at a negative dpotential indicating coincidence. If, on the other hand, the first andsecond holes were different points, Q6 to Q5 would be at groundpotential for no coincidence.

Each of the points Q6 to Q5 are connected to the D17-D22 portion of andgate D17-D24. If all the Q6 to Q5 are at a negative potential,indicating coincidence of two successive codes, the gate D17-D24 isopened and the or delay gate D76-D76 is opened which places iiipflopT13-T14 in condition to insert a delay in the pulsing circuit and tostop the tape reader.

If there is no coincidence, the collector of T14 is at ground potentialand that of T13 is at a negative potential and the opposite occurs ifthere is coincidence. Transistors T13 and T14 lead to and gates D62-D63and D66- D61, respectively, and each of these gates also receives asignal from the central pulsing photo-diode Pm through flip-flop T15-T16and condenser C3. If there is no coincidence, flip-flop T26-T16 willoperate the pulsing transistor T22 to send a pulse through the pathwhich has been opened by photo-diodes P6 to P5 to energize a particularsolenoid or to perform some function of the machine.

However, if there is coincidence, the oscillator T17-T13 will introducea delay in the pulsing of the signal through ip-op T16-T26 to allow thesecond matrix to reach its releasing position and at the same time willstop the tape from being fed to prevent other matrices from beingreleased. After a predetermined amount of time, the signal is releasedthrough the transistor T22 to release the second matrix and the tape isagain allowed to move.

After each cycle, a signal from the pulsing circuit resets the ip-ilopof T4-T5 of the memory circuit to its normal state so that the cycle canstart again.

Delays are also introduced in a similar manner for return, space bandand add thin space signals. For elevate, lower rail and upperrailsignals, extra long dlelays are introduced to permit these functions tobe comp eted.

Referring to the drawings and more particularly to FIG. 2, control ofthe function of a line-casting machine (not shown) is accomplished by aperforated tape 6 having a series of perforations or code openings 0, 1,2, 3, 4, 5, therein and a central pulsing opening M. The tape 6 is movedthrough a tape reader P which has means for sensing the code openings 0,1, 2, 3, 4, 5, in the tape 6. In the preferred embodiment of theinvention, as shown in the drawings, the tape reader P has a pluralityof photodiodes P6, P1, P2, P3, P4 and P5 which are adapted to respond tolight passing through the code openings 0, 1, 2, 3, 4, 5, in the tape -6as the tape 6 is moving through the tape reader.

The sensing of light from the code opening by the photo-diodes P6, P1,P2, P3, P4 and P5 will open a predetermined path in a circuit of theautomatic line-casting machine.

The tape reader P is provided with a central pulsing photo-diode cell Pmwhich is adapted to pulse a signal through the path previously opened bythe sensing of the code openings 0, l, 2, 3, 4, 5, to cause the machineto perform a function.

As fully described in said co-pending application Serial No. 95,577described above, the photo-diodes P6, P1, P2, P3, P4 and P5 are coupledto a decoder circuit. The decoder circuit comprises a front endamplifier which arnpliiies the signal from each photo-diode P6, P1, P2,P3, P4 and P5. Depending on whether a hole or no-hole appears, aflip-Hop will open a circuit to either the no-hole line or the hole lineof both an upper and lower decoder now to be described.

Each line is connected to several and gates of a rst set of threephoto-diodes which constitute the upper decoder and another set of andgates are connected to the lines of the lower decoder comprising asecond set of three i photo-diodes. A particular code openingcombination in the tape will open a single path through the circuitwhich will cause the machine to perform a predetermined function. As thetape continues to move, the central pulsing opening M is sensed by thecentral pulsing photo-diode P,ln and a signal is pulsed through the openpath to perform a function of the machine.

Each new signal from each of the photo-diodes P0, P1, P2, P3, P4 and P5is compared with the old signal by means of a memory circuit and istransferred to a coincidenc gate through a memory flip-flop. Thecoincidence gate will be conditioned by the signals so that if the twoare identical, it Will actuate a delay mechanism which will stop thefeeding of the tape for a predetermined time interval in order to givethe second matrix time to move to the release position before the actualsignal is pulsed through the path.

An elevate and gate (DSO-D85 in FIG. 3) is provided and is in circuitwith the front end amplifiers which receive the signals from thephoto-diodes P0, P1, P2, P3, P4 and P5. After the matrices have beenassembled on the elevator, an elevator code opening is sensed by thetape reader. This elevator code opening satisfies the elevator gate 10so that a circuit is closed to the elevator-raising mechanism. When thenext pulsing opening is sensed by the pulsing photo-diode, a signal ispulsed through the elevate circuit to raise the elevator to the castingposition.

In order to move the tape back in the reverse direction when amalfunction occurs so that the tape will be at the beginning of a lineto be recast, the movement of the tape in the forward direction mustirst be stopped. The tape must then be moved in the reverse direction.While moving in the reverse direction, the reading of the code openingsPo, P1, P2, P3, P4 and P5 by the photo-diodes M must be inhibited.However, the elevate code opening should be recognized so that themechanism will sense when the beginning of the line to be recast hasbeen reached. However, instead of raising the elevator, this elevatecode opening is used to stop the movement of the tape in the reversedirection. The tape must then be moved in the forward direction but therst elevate signal which the tape reader will sense must also beinhibited since there are no matrices on the elevator. All subsequentopenings must be recognized by the reader.

The motor unit 9 for driving the tape reader P for moving the tape int-he forward direction comprises the usual windings 11 and y12 and athird winding 113 adapted to apply full power when the motor isreversed. A double throw two-position reverse motor contact arm 14movable from a normal position in circuit with contacts 15 to a positionin circuit with contacts 16 is controlled by a reversing relay 17.

The reversing relay 17 is controlled by a control contact arm 18 of alatching-type control relay 19 having a set coil 20 and a reset coil 21.T-he control contact arm 18 is normally in circuit with a stop tapesolenoid 22 through lead 23 and is movable into circuit with reversingrelay 17 through lead 24 when the set coil 20 of the relay 19 isenergized.

The stop tape solenoid 22 is controlled by a stop tape -switch 25 whichis a push-on-push-oif switch. The latch-type relay 19 is controlled by areverse tape switch 26 (which is a momentary switch) through the stoptape solenoid and control contact arm 18.

With the position of the parts as in FIG. l, the stop tape switch 25 isdepressed to close the circuit to the stop tape solenoid 22 which isenergized to stop the feeding of the tape 6. The tape then remainsstopped until the reverse tape switch 26 is depressed. Upon depressionof the reverse tape switch 26 the set coil 20 of the latching-typecontrol relay 19 is energized to move the `control contact arm 18 to aposition in circuit with lead 24. This movement of the control contactarm 18 breaks the circuit to the stop tape solenoid 22, thus freeing thetape for movement.

When the control contact arm 18 closes the circuit with lead 24, thereversing relay 17 is energized to move the reverse main contact arm 14into contact with contacts 16 to reverse the direction of the power -sothat 6 the motor now operates in the reverse direction and the tapemoves in the reverse direction. In addition the winding 113 is now inthe circuit so that maximum voltage is applied and the tape moves in thereverse direction at full speed.

It will be noted that lead 24 is in circuit with the pulsing circuitthrough lead 32 to change the logic from leading edge to the trailingedge of the pulsing opening Pm in the tape 6. Since the tape is movingin the reverse direction, the logic must be changed.

The lead 24 is also connected to one side of a flipilop 30. The ip-ilop30 is connected to the decoder circuit through lead 33 and has its otherside coupled to the elevate gate 10 through a capacitor 34 and to thecircuit for supplying power on reset through lead 3S.

The lead 24 also feeds into a control and gate 31. The control gate 31is also fed by the elevate gate 10 through an inverter 36 and by thephoto-diodes of the tape reader through a trigger 37 (which may be asocalled Schmit trigger) and a capacitor 38.

The output of the and gate 31 is in circuit with a monostable iip-lop 40having a timed output. One side of said flip-flop 40 is in circuit withthe reset coil 21 of the control relay 19 through inverter 41 and theother side of flip-flop 40 is in circuit with the resetting circuit forthe front end flip-flops through capacitor 42.

With this arrangement, when control contact arm 18 is moved int-ocircuit with lead 24, power is directed on one side of flip-op 30 tohold it in the set position. This immediately places a negative bias onthe decoder circuit to inhibit the reading of the code openings in thetape 6.

At the same time, the logic of the pulsing circuit is reversed sincepower is supplied to the pulsing circuit through lead 32 so that thetrailing edge of the pulsing opening is read by the pulsing photocell Pmrather than the leading edge. This is necessary since the tape is in thereverse direction and the logic is also reversed.

Simultaneously, power is fed to the control gate 31 so that one of thethree conditions of -gate 31 is met.

The tape 6 now is moving in the reverse direction, however, the decodercircuit which would ordinarily analyze the code openings in the tape isinhibited by the flip-flop 30. Hence no matrices will be released fromthe magazine. The tape 6 continues to move in the reverse directionuntil an elevate code opening appears on the tape 6.

When an elevate code opening appears on tape 6 (at the beginning of theline which is to be recast) elevate gate 10 is satisfied and a signal ispulsed through the capacitor 34 into the other side of the flip-flop 30.However, flip-flop 30 is not reset since it is still coupled to anegative voltage through lead 24, as discussed above.

A signal from the elevate gate 10 is also pulsed to the control gate 31through the inverter 36. When the next pulsing opening is sensed by thecentral photo-diode Pm (at this point the tape is still moving in thereverse direction), the trigger 37 fires through capacitor 38 into.

the control gate 31 so that all the conditions of the control gate 31are satisfied.

Once satisfied the control gate 31 tires a pulse into the Hip-flop 40.This energizes the reset coil 21 of the latching-relay 19 through theinverter 41 and, simultaneously, Hip-flop 40 sends pulse to reset thefront end Hip-flops of the decoder circuit through capacitor 42.

Because of the fact that it takes longer for the reset coil 20 to beenergized than for the front end Hip-flops to be reset, elevate gate 10is reset before the control contact arm 1'8 is returned to its normalposition in circuit with stop tape solenoid 22. When the latching-relay19 is reset, the stop tape solenoid 22 is again energized to stop thetape and the circuit to reverse relay 17 is broken so that the reversecontact arm 14 again returns to the normal position in circuit withcontacts 15 so as to put the motor into the forward position.

In addition, the logic is again reversed so that the leading edge of thepulsing opening is again read.

The tape has been stopped and will not move until the operator againmoves the stop tape switch 25. When this occurs, the stop tape solenoid22 is released so that the tape moves in the forward direction. Theelevate code -opening (this is the same code opening that originallysatisfied elevate gate 10 when the tape was moving in the reversedirection) is then read by the tape reader and the elevate gate 10 againis satisfied and pulses a signal through capacitor 34 to reset theflip-nop 30. This releases the inhibit on the `decoder circuit so thatthe operation resumes its normal sequence.

It will be seen that the present invention provides an improved controlmechanism for line-casting machines whereby a defective line will beautomatically reassembled and whereby the tape will be automaticallymoved back t0 the proper position. l As various changes may be made inthe form, construction and arrangement of the parts herein withoutdeparting from the spirit and scope of the invention and withoutsacrificing any of its advantages, it is to be understood that allmatter herein is to be intrepreted as illustrative and not in a limitingsense.

Having thus described my invention, l claim:

l. A control mechanism for a line-casting machine comprising a tapereader, means for moving a tape having code openings therein throughsaid tape reader, means responsive to the code openings in said tape forperforming a function of said line-casting machine, said code openingsincluding an elevate code opening adapted to cause the elevator of theline-casting machine to elevate, means for stopping the forward movement0f the tape, control means for reversing the movement of the tapethrough the reader and for inhibiting said function-performing meanswhen the tape is moving in the reverse direction, means responsive to apredetermined elevate code opening in said tape for stopping themovement of the tape in the reverse direction, means for moving the tapein the forward direction, said control means preventing the elevatorfrom elevating when said predetermined elevate code opening is read bythe tape reader when the tape is traveling in the forward direction, andmeans responsive to said predetermined elevate code opening forreleasing the inhibit on said function performing means.

2. A cont-rol circuit for a line-casting machine cornprising a tapereader, means for moving a tape having code openings therein throughsaid tape reader, means responsive to the code openings in said tape,for performing a function of said line-casting machine, said codeopenings including an elevate code opening, an elevate circuit adaptedto be closed by an elevate code opening, pulsing means for pulsing asignal through said elevate circuit to cause the elevator of theline-casting machine to elevate, means for stopping the forward movementof the tape, control means for simultaneously releasing the tape forreverse movement and operable for reversing the movement of the tapethrough the reader, means operable by said control means for inhibitingsaid function-performing means when the tape is moving in the reversedirection, said control means preventing said elevate pulse from raisingthe elevator when a predetermined elevate code opening is read by thereader while the tape is moving in the reverse direction, said controlmeans being operable by the elevate pulse to stop the movement of thetape in the reverse direction, means for moving the tape in the forwarddirection, means for preventing the elevator from elevating when saidpredetermined elevate code opening is read by the tape reader when thetape is traveling in the forward direction, and means responsive to saidpredetermined elevate code opening for releasing the inhibit on saidfunction-performing means.

3. A control circuit for a line-casting machine comprising a tapereader, means for moving a tape having code openings therein throughsaid tape reader, means responsive to the code openings in said tape forperforming a function of said line-casting machine, said code openingsincluding an elevate code opening, an elevate circuit adapted to beclosed by an elevate code opening, pulsing means for pulsing a signalthrough said elevate circuit to cause the elevator of the line-castingmachine to elevate, means for stopping the forward movement of the tape,control means in circuit with said stopping means and operable to open acircuit to said stopping means and close a circuit to means forreversing the movement of the tape through the reader, means energizedby said operation of said control means for inhibiting saidfunction-performing means when the tape is moving in the reversedirection, said control means preventing said elevate pulse from raisingthe elevator when a predetermined elevate code opening is read by thereader while the tape is moving in the reverse direction, means forcausing said elevate pulse to operate said control means to close thecircuit to said stopping means to stop the movement of the tape in thereverse direction, means for moving the tape in the forward direction,means for preventing the elevator from elevating when said predeterminedelevate code opening is read by the tape reader When the tape istraveling in the forward direction, and means responsive to saidpredetermined elevate code opening for releasing the inhibit on saidfunction-performing means;

4. A control circuit for a line-casting machine oomprising a tapereader, means for moving a tape having code openings therein throughsaid tape reader, means re` sponsive to the code openings in said tapefor performing a function of said line-casting machine, said codeopenings including an elevate code opening, an elevate circuit adaptedto be closed by an elevate code opening, pulsing means for pulsing asignal through said elevate circuit to cause the elevator of theline-casting machine to elevate, means for stopping the forward movementof the tape, a control relay in circuit with said stopping means andadapted to be energized to opening a circuit to said stopping means andclose a circuit to means for reversing the movement of the tape throughthe reader, means energized by said control relay for inhibiting saidfunction-performing means when the tape is moving in the reversedirection, said control relay adapted to prevent said elevate pulse fromraising the elevator when a predetermined elevate code opening is readby the reader While the tape is moving in the reverse direction, meansfor causing said elevate pulse to operate said control relay to closethe circuit to said stopping means to stop the movement of the tape inthe reverse direction, means for moving the tape in the forwarddirection, means for preventing the elevator from elevating when saidpredetermined elevate code opening is read by the tape reader when thetape is traveling in the forward direction, and means responsive to saidpredetermined elevate code opening for releasing the inhibit on saidfunction-performing means. 4

5. A control mechanism fora line-casting machine comprising a tapereader, means for moving a tape having code openings therein throughsaid tape reader, means responsive to the code openings in said tape forperform-` ing a function of said line-casting machine, said codeopenings including I,an elevate code opening, an elevate circuit adaptedto be closed by an elevate code opening, pulsing means for pulsingasignal through said elevate circuit to cause the elevator of theline-casting machine to elevate, a stop tape solenoid for stopping theforward movement of the tape, a control relay in circuit with said stoptape solenoid and adapted to be energized to open a circuit to said stoptape solenoid and close a circuit to means for revers-ing the movementof the tape through the reader, means energized by said control relayfor in- 'hibiting said function-performing means when the tape 9direction, means for causing said elevate pulse to operate said controlrelay to close the circuit to said stop tape solenoid to stop themovement of the tape in the reverse direction, means for moving the tapein the forward direction, means :forpreventing the elevator fromelevating when said predetermined elevate code opening is read by thetape reader when the tape is traveling in the forward direction, andmeans respons-ive to said predetermined elevate code opening to releasethe inhibit on said functionperforming means.

6. A control mechanism for a line-casting machine comprising a tapereader, means for moving -a tape having code openings therein throughsaid tape reader, means responsive to the code openings in said tape forperforming a function of said line-casting machine, said code openingsincluding an elevate code opening, an elevate circuit adapted to beclosed by an elevate code opening, pulsing means for pulsing a signalthrough said elevate circuit to cause the elevator of the line-castingmachine to elevate, a stop tape solenoid for stopping the forwardmovement of the tape, a control relay in circuit with said stop tapesolenoid and ladapted to be energized to opening a circuit to said stoptape solenoid and close a circuit to means for reversing the movement ofthe tape through the reader, a iiip-flop activated by operation of saidcontrol relay for inhibiting said function-performing means when thetape is moving in the reverse direction, said control relay adapted toprevent said elevate pulse from raising the elevator when apredetermined elevate code opening is read by the reader while the tapeis moving in the reverse direction, means for causing said elevate pulseto operate said control relay to close the circuit to said stop tapesolenoid to stop the movement of the tape in the reverse direction,means for moving the tape in the forward direction, means for preventingthe elevator from elevating when said predetermined elevate code openingis read by the tape reader when the tape is traveling in the forwarddirection, and means responsive to said predetermined elevate codeopening to release the inhibit on said function-performing means.

7. A control mechanism for a line-casting machine comprising a t-apereader, means for moving a tape having code openings therein throughsaid tape reader, means responsive to the code openings in said tape forperforming a function of said line-casting machine, said code openingsincluding an elevate code opening, an elevate gate, an elevate circuitiadapted to be closed by the satisfaction of said elevate gate by anelevate code opening, pulsing means for pulsing a signal through saidelevate circuit to cause the elevator -of the line-casting machine toelevate, ya stop tape solenoid for stopping the forward movement of thetape, a control relay in circuit with said stop tape solenoid andyadapted to be energized to open a circuit to said stop tape solenoidand close a circuit to means for reversing the movement of the tapethrough the reader, a flip-flop activated by operation of said controlrelay for inhibiting said function-performing means when the tape ismoving in the reverse direction, said control relay adapted to preventsaid elevate pulse from raising the elevator when a predeterminedelevate code opening is read by the reader while the tape is moving inthe reverse direction, means for causing said elevate pulse to operatesaid control relay to close the circuit to said stop tape solenoid tostop the movement of the tape in the reverse direction, means for movingthe tape in the forward direction, means .for preventing the elevatorfrom elevating when said predetermined elevate code opening is read bythe tape reader when the tape is traveling in the forward direction, andmeans responsive to said predetermined elevate code opening to releasethe inhibit on said function-performing means.

8. A control mechanism for a line-casting machine comprising a tapereader, means for moving a tape having code openings therein throughsaid tape reader, said code openings including an elevate code openingadapted to cause the elevation of the line-casting machine to elevate, acontrol circuit for said line-casting machine, said circuit includingmeans responsive to the code openings in the tape for performing afunction of said line-casting machine, said circuit including an elevategate responsive to an elevate code opening in the tape to capse theelevator of the line-casting machine to elevate, a motor controlled bysaid circuit for moving the tape in the forward direction, a stop tapesolenoid in said circuit for stopping the forward movement of the tape,a control relay in circuit with said stop tape solenoid and adapted tobe energized to open a circuit to said stop tape solenoid and close acircuit to means for reversing said motor to move the tape in thereverse direction, a ip-op activated by said control relay forinhibiting the function-performing means when the tape is traveling inthe reverse direction, means for causing a predetermined elevate codeopening in said tape to energize said elevate gate, means responsive tosaid elevate gate to operate said control relay to close the circuit tosaid stop tape solenoid for stopping the movement of the tape in thereverse direction, means for moving the tape in the forward direction,means for preventing the elevator from elevating when said elevate codeopening is read by the tape reader when the tape is traveling in theforward direction, and means responsive to said predetermined elevatecode opening to release the inhibit on said function-performing means.

9. A line-casting machine, a control circuit for said line-castingmachine comprising a motor for moving a tape through a tape reader, saidtape having code openings therein, a stop tape solenoid in said circuitadapted to be energized to prevent said tape from moving through saidtape reader, means in circuit with said stop tape solenoid and operableto energize sai-d stop tape solenoid, a reverse motor contact armmovable from a first position to supply power to the winding of saidmotor in one direction to a second position to supply power to thewinding of said motor in the reverse direction, means in said circuitadapted to control the position of said reverse motor contact arm, acontrol conta-ct farm adapted to move from a irst position contact incircuit with said stop tape solenoid 'to a :second .position contact incircuit with said motor contro-llin g means, a 4contnol rel-ay adaptedto contro-l said ycontrol contact arm, .a decoder circuit `adapted tolarralyze the code openings in the tape to open a path to afunction-performing mechanism of said line-casting machine, a pulsingcircuit for pulsing a signal through said path, an inhibiting flip-iiopin circuit with said decoder circuit and having one side thereof incircuit with `said second position contact of the control contact arm,said pulsing circuit connected to said second position contact of thecontrol contact arm, an elevate gate in the circuit, said elevate gateconnected to the other side of said inhibiting ip-op, a control gate insaid circuit, said second position Contact of said main contact armfeeding into said control gate, said elevate gate feeding into saidcontrol gate, said control gate in circuit with the control relay' andin circuit with said decoder circuit.

10. A line-casting machine, control circuit for said line-castingmachine comprising a motor for moving a tape through a tape reader, saidtape having code openings therein, a stop tape solenoid in said circuitadapted to be energized to prevent said tape from moving through saidtape reader, a normally open stop tape switch in circuit with said stoptape solenoid adapted to energize said stop tape solenoid when said stoptape switch is closed, a reverse motor Contact arm movable from a firstposition to supply power to the winding of said motor in one directionto a second position to supply power to the winding of said motor in thereverse direction, means in said circuit adapted to control the positionof said reverse motor contact arm, a control contact arm adapted to movefrom a first position Contact in circuit with said stop tape solenoid toa second position contact in circuit with said motor reversing relay, :alatching-type control relay adapted to control said control contact arm,said latching-type relay having a set andre-set coil, a normally openreverse tape switch in circuit with the set coil of said control relay,a decoder circuit adapted to analyze the code openings in the tape toopen a path to a function-performing mechanism of said line-castingmachine, a pulsing circuit for pulsing a signal through said path, aninhibiting flip-iiop in circuit with said decoder circuit and having oneside thereof in circuit with said second position contact of the controlcontact arm, said pulsing circuit connected to said second positioncontact of the control contact arm, an elevate gate in the circuit, saidelevate gate connected to the other side of said inhibiting Hip-flop, atrigger circuit connected to the pulsing circuit, a control gate in saidcircuit, said second position contact of said main contact arm feedinginto said control gate, said trigger circuit feeding into said controlgate, said elevate gate feeding into said control gate, said controlgate in circuit with the reset coil of the latching-type contact relayand in circuit with said decoder circuit.

11. A line-casting machine control circuit for said linecasting machinecomprising a motor for moving a tape through a tape reader, said tapehaving code openings therein, a stop tape solenoid in said circuitadapted to be energized to prevent said tape from moving through saidtape reader, a normally open stop tape switch in circuit with said stoptape solenoid adapted to energize said stop tape solenoid when said stoptape switch is closed, a reverse motor contact arm movable from a iirstposition to supply power to the winding of said motor in one directionand to 1a second position to supply power to the winding of said motorin the reverse direction, a motor reversing relay in said circuitadapted to control the position of said reverse motor contact arm, acontrol contact arm adapted to move from a first position contact incircuit with said stop tape solenoid to a second position contact incircuit with said motor reversing relay, a latching-type control relayadapted to control said control contact arm, said latching-type relayhaving a set and a reset coil, a normally open reverse tape switch incircuit with the set coil of said control relay, a decoder circuitadapted to analyze the code openings in the tape to open a path to afunction-performing mechanism of said line-casting machine, a pulsingcircuit for pulsing la signal through said path, an inhibiting Hip-flopin circuit with said decoder circuit and having one side thereof incircuit with said second position contact of the control contact armsaid pulsing circuit connected to said second position contact of thecontrol contact arm, an elevate gate in the circuit, said elevate gateconnected to the other side of said inhibiting flip-flop, a triggercircuit connected to the pulsing circuit, a control gate in saidcircuit, said second postion contact of said main contact arm feedinginto said control gate, said trigger circuit feeding into said controlgate, said elevate gate feeding into said control gate, said controlgate in circuit with a reset coil of the latching-type control relay andin circuit with said decoder circuit.

12. A line-casting machine control circuit for said line-casting machinecomprising a motor for moving a tape through a tape reader, said tapehaving code openings therein, a stop tape solenoid 4in said circuitadapted to be energized to prevent said tape from moving through Isaidtape reader, a normally open stop tape switch in circuit with said stoptape solenoid adapted to energize said stop tape solenoid when said stoptape switch is closed, a reverse motor contact .arm movable from a iirstposition to supply power to the winding of said motor in one directionand to a second position to supply power to the winding of said motor inthe reverse direction, a motor reversing relay in said circuit adaptedto control the position of said reverse motor contact arm, a controlmain contact arm adapted to move from a first position contact incircuit with said stop tape solenoid to a second position contact incircuit with said motor reversing relay, a latching-type control relayadapted to control said control contact arm, said latching-type relayhaving a `set and a reset coil, a normally open reverse tape switch incircuit with the set coil of said control relay, a decoder circuitadapted to analyze the code openings in the tape to open a path to afunction-performing mechanism of said line-casting machine, a pulsingcircuit for pulsing a signal through said path, an inhibiting flip-flopin circuit with said decoder circuit and having one side thereof incircuit wth said second position contact of the control contact arm,said pulsing circuit connected to said second position contact of thecontrol contact arm, an elevate gate in the circuit, said elevate gateconnected to the other side of said inhibiting flip-nop, a triggercircuit connected to the pulsing circuit, a control gate in saidcircuit, said second position contact of said main contact arm feedinginto said control gate, said trigger circuit feeding into said controlgate, said elevate gate feeding into said control gate, a flip-flop incircuit with said control gate, said flip-flop in circuit with the resetcoil of the latching-type control relay and in circuit with said decodercircuit.

13. A line-casting machine, control circuit for said linecasting machinecomprising a motor for moving a tape through a tape reader, said tapehaving code openings therein, a stop tape solenoid in said circuitadapted to be energize to prevent said tape from moving through saidtape reader, a normally open stop tape switch in circuit with said stoptape solenoid adapted to energize said tape solenoid when said stop tapeswitch is closed, a reverse motor contact arm movable from a rstposition to supply power to the winding of said motor in one directionto a second position to supply power to the winding of said motor in thereverse direction, a motor reversing relay in said circuit adapted tocontrol the position of said reverse contact arm, 1a main contact armadapted to move from a iirst position Contact in circuitl said path, aninhibiting dip-flop in circuit with said decoderV circuit and having oneside thereof in circuit with said second position contact of the controlcontact arm, said pulsing circuit connected to said second positioncontact of the main contact arm, an elevate gate in the circuit, saidelevate gate connected to the other side of said inhibiting Hip-flopthrough a capacitor, a trigger circuit i connected to the pulsingcircuit, a control gate in said circuit, said second position contact ofsaid main contact 4ar-m feeding into said control gate, said triggercircuit feeding into said control gate through a capacitor, said elevategate feeding into said control gate through an inverter, a monostableip-op having a timed output in circuit with said control gate, saidmonostable flip-flop in circuit with the reset coil of the latching-typerelay through an inverter land in circuit with said decoder circuitthrough a capacitor.

14. A tape-operated control circuit for a line-casting machine, a motorfor moving a tape through a tape reader, said tape having code openingstherein, a stop" tape solenoid in said circuit adapted to be energizedto prevent said tape from moving through said tape reader,

lmeans in circuit with said stop tape solenoid and opy erable toenergize said stop tape solenoid, a reverse motor contact arm movablefrom a rst position to supply power to the winding of said motor in onedi-- rection to a second position to supply power to the 13 winding ofsaid motor in the reverse direction, means in said circuit adapted tocontrol the position of said reverse motor contact arm, a controlcontact arm adapted to move from a rst position contact in circuit withsaid stop tape solenoid to a second position contact in circuit withsaid motor controlling means, a tape control relay adapted tocontrolsaid control contact arm, a decoder circuit adapted to analyzethe code openings in the tape to open a path to a function-performingmechanism of said line-casting machine, a pulsing circuit for pulsing asignal through said path, an inhibiting flip-flop in circuit with saiddecoder circuit and having one side thereof in circuit with said secondposition contact of the control contact arm, said pulsing circuitconnected to said second position contact of the control contact arm, anelevate gate in the circuit, said elevate gate connected to the otherside of said inhibit- 'ing flip-flop, a control gate in said circuit,said second position contact of said main Contact arm feeding into saidcontrol gate, said elevate gate feeding into said control gate, saidcontrol gate in circuit with the control relay through an inverter andin circuit with said decoder circuit.

15. A tape-operated control circuit for a line-casting machinecomprising a motor for moving a tape through a tape reader, said tapehaving code openings therein, a stop tape solenoid in said circuitadapted to be energized to prevent said tape from moving through Saidtape reader, a normally open stop tape switch in circuit with said stoptape solenoid adapted to energize said stop tape solenoid when said stoptape switch is closed, a reverse motor contact arm movable from a firstposition to supply power to the winding of said motor in one directionto .a second position to supply power to the winding of said motor inthe reverse direction, means in said circuit adapted to control theposition of said reverse motor contact arm, a control contact armadapted to move from a first position contact in circuit with said stoptape solenoid to a second position contact in circuit with said motorreversing relay, a latching-type control relay adapted to control saidcontrol contact arm, said latching-type relay having a set and a resetcoil, a normally open reverse tape switch in circuit with the set coilof said control relay, a decoder circuit adapted to analyze the codeopenings in the tape to open a path to a function-performing mechanismof said line-casting machine, a pulsing circuit for pulsing a signalthrough said path, an inhibiting ip-flop in circuit with said decodercircuit and having one side thereof in circuit with said second positioncontact of the control contact arm, said pulsing circuit connected tosaid second position contact of the control contact arm, an elevate gatein the circuit, said elevate gate connected to the other side of saidinhibiting ip-flop, a trigger circuit connected to the pulsing circuit,a control gate in said circuit, said second position contact of saidmain Contact arm feeding into said control gate, said trigger circuitfeeding into said control gate, said elevate gate feeding into saidcontrol gate, said control gate in circuit with the reset coil of thelatching-type control relay in circuit with said decoder circuit.

16. A tape-operated control circuit for a line-casting machine, controlcircuit for said line-casting machine comprising a motor for moving atape through a tape reader, said tape having code openings therein, astop tape solenoid in said circuit adapted to be energized to preventsaid tape from moving through said tape reader, a normally open stoptape switch in circuit with said stop tape solenoid adapted to energizesaid stop tape solenoid when said stop tape switch is closed, a reversemotor contact arm movable from a first position to supply power to thewinding of said motor in one direction to a second position to supplypower to the Winding of said motor in the reverse direction, a motorreversing relay in said circuit adapted to control the position of saidreverse motor contact arm, a control contact arm adapted to move from afirst position contact in circuit with said stop tape solenoid to asecond position contact in circuit with said motor reversing relay, alatching-type control relay adapted to control said control contact arm,said latching-type relay having a set and a reset coil, a normally openreverse tape switch in circuit with the set coil of said control relay,a decoder circuit adapted to analyze the code openings in the tape toopen a path to a function-performing mechanism of said line-castingmachine, a pulsing circuit for pulsing a signal through said path, aninhibiting flipflop in circuit with said decoder circuit and having oneside thereof in circuit with said second position contact of the controlcontact arm, said pulsing circuit connected to said second positioncontact of the control contact arm, an elevate gate in the circuit, saidelevate gate connected to the other side of said inhibiting flipiiop, atrigger circuit connected to the pulsing circuit, a control gate in saidcircuit, said second position contact of said main contact arm feedinginto said control gate, said trigger circuit feeding into said controlgate, said elevate gate feeding into said control gate, said controlgate in circuit with the reset coil of the latchingtype control relayand in circuit with said decoder circuit.

17. A tape-operated control circuit for a line-casting machine, controlcircuit for said line-casting machine comprising a motor for moving atape through a tape reader, said tape having code openings therein, astop tape solenoid in said circuit adapted to be energized to preventsaid tape from moving through said tape reader, a normally open stoptape switch in circuit with said stop tape solenoid adapted to energizesaid tape solenoid when said stop tape switch is closed, a reverse motorcontact arm movable from a first position to supply power to the windingof said motor in one direction to a second position to supply power tothe winding of said motor in the reverse direction, a motor reversingrelay in said circuit adapted to control the position of said reversemotor contact arm, a control main contact arm adapted to move from airst position contact in circuit with said stop tape solenoid to asecond position contact in circuit with said motor reversing relay, alatching-type control relay adapted to control said control contact arm,said latching-type relay having a set and a reset coil, a normally openreverse tape switch in circuit with the set coil of said control relay,a decoder circuit adapted to analyze the code openings in the tape toopen a path to a function-performing mechanism of said line-castingmachine, a pulsing circuit for pulsing a signal through said path, aninhibiting Hip-flop in circuit with said decoder circuit and having oneside thereof in circuit with said second position contact of the controlcontact arm, said pulsing circuit connected to said second positioncontact of the control contact arm, an elevate gate in the circuit, saidelevate gate connected to the other side of said inhibiting flip-op, atrigger circuit connected to the pulsing circuit, a control gate in saidcircuit, said second position contact of said main contact arm feedinginto said control gate, said trigger circuit feeding into said controlgate, said elevate gate feeding into said control gate, flip-flop incircuit with the reset coil of the latching-type control relay and incircuit with said decoder circuit.

18. A tape-operated control circuit for a line-casting machinecomprising a motor for moving a tape through a tape reader, said tapehaving code openings therein, a stop tape solenoid in said circuitadapted to be energized to prevent said tape from moving through saidstop tape solenoid adapted to energize said stop tape solenoid when saidstop tape switch is closed, a reverse motor contact arm movable from afirst position to supply power to the winding of said motor in onedirection to a second position to supply power to the winding of saidmotor in the reverse direction, a motor reversing relay in said circuitadapted to control the position, said reverse contact arm, a maincontact arrn adapted to move from a rst position Contact in circuit Withsaid stop tape solenoid to a second position contact in circuit withsaid motor reversing relay, a latching-type control relay adapted tocontrol said main Contact arm, said latchingtype relay having a set anda reset coil, a normally open reverse tape switch in circuit with theset coil of said control relay, a decoder circuit adapted to analyze thecode openings in the tape to open a path to a function-performingmechanism of said line-casting machine, a pulsing circuit for pulsing asignal through said path, an inhibiting flip-flop in circuit with saiddecoder circuit and having one side thereof in circuit with said second-position contact of the control contact arm, said pulsing circuitconnected to said second position contact of the main contact arm, anelevate gate in the circuit, said elevate gate connected to the otherside of said inhibiting ip-flop through a capacitor, a trigger circuitconnected to the pulsing circuit, a control gate in said circuit,

References Cited by the Examiner UNITED STATES PATENTS 1,953,072 4/ 34Casper 340-147 2,386,482 10/45 Leathers et al. 340--147 2,500,150 3/50Bullard et al 318--466 2,834,928 5/58 Carter 318-466 2,989,590 6/61 DeBoo 178-17 3,003,094 10/61 Gough S18-162 20 NEIL C. READ, PrimaryExaminer.

1. A CONTROL MECHANISM FOR A LINE-CASTING MACHINE COMPRISING A TAPEREADER, MEANS FOR MOVING A TAPE HAVING CODE OPENINGS THEREIN THROUGHSAID TAPE READER, MEANS RESPONSIVE TO THE CODE OPENINGS IN SAID TAPE FORPERFORMING A JUNCTION OF SAID LINE-CASTING MACHINE, SAID CODE CAUSE THEELEVATOR OF THE LINE-CASTING MACHINE TO ELEVATE, MEANS FOR STOPING THEFORWARD MOVEMENT OF THE TAPE, CONTROL MEANS FOR REVERSING THE MOVEMENTOF THE TAPE THROUGH THE READER AND FOR INHIBITING SAIDFUNCTION-PERFORMING MEANS WHEN THE TAPE IS MOVING IN THE REVERSEDIRECTION, MEANS RESPONSIVE TO A PREDETERMINED ELEVATE CODE OPENING INSAID TAPE FOR STOPPING THE MOVEMENT OF THE TAPE IN THE REVERSEDIRECTION, MEANS FOR MOVING THE TAPE IN THE FORWARD DIRECTION, SAIDCONTROL MEANS PREVENTING THE ELEVATOR FROM ELEVATING WHEN SAIDPREDETERMINED ELEVATE CODE OPENING IS READ BY THE TAPE READER WHEN THETAPE IS TRAVELING IN THE FORWARD DIRECTION, AND MEANS RESPONSIVE TO SAIDPREDETERMINED ELEVATE CODE OPENING FOR RELEASING THE INHIBIT ON SAIDFUNCTION PERFORMING MEANS.